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JamesPa
@jamespa
Moderator
Illustrious Member
Joined: Apr 3, 2023
Last seen: Aug 2, 2025
Profile Activity
Topics: 17 / Replies: 2671
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RE: Load Compensation and Weather Compensation

Fair enough, I was just checking I hadn't missed something! Thanks for replying.

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Load Compensation and Weather Compensation

This is so important. For my money householders need to know how to balance radiators using the lsv. Why? Because, given that its unlikely that radi...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Load Compensation and Weather Compensation

The other important point about wc is that the controller gets the signal to change what it is doing at the same time as the principal driving factor ...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Load Compensation and Weather Compensation

Surely you can 'correct' a mildly oversized rad by turning down the lsv during the balancing process? Certainly that's what I did with my installatio...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Load Compensation and Weather Compensation

As @ashp-bobba says there are lots of variables. My house takes 3-6hrs to change temperature by a degree. I have one room with a fancoil that respon...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Commencing on an ASHP Installation Process

Correct. However unofficial data suggests this ignores defrosts and you might have to derate by 10-20pc when it's defrosting a lot, which in fairness...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Commencing on an ASHP Installation Process

A couple of hopefully helpful comments Vaillant 10kW is the same as the 12kW, just software limited. A neighbour of mine was borderline 7/10kW an...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Planning Update: 1 Metre Boundary Rule for Heat Pumps Has Been Scrapped

The order, despite it's title, appears to apply to England and Wales, see article 1

3 months ago
Forum
Government Schemes, Regulations, Planning & Organisations
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RE: Say hello and introduce yourself

Yes but we have to deal for now with the world as it is not as we would like it to be (whilst seeking to change it at the same time) Householder ...

3 months ago
Forum
Introductions, Forum Rules & Updates
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RE: Say hello and introduce yourself

Yes that's true of course Unfortunately installers all too frequently don't use the correct numbers, and it's not always possible to tell, which is...

3 months ago
Forum
Introductions, Forum Rules & Updates
Reply
RE: Say hello and introduce yourself

It's not really that bad if you just take it methodically, using the knowledge on this forum, and have confidence in your own ability to think logical...

3 months ago
Forum
Introductions, Forum Rules & Updates
Reply
RE: Say hello and introduce yourself

@matwin This post is a real world example of the effects of oversizing and buffers. It's worth reading it and the subsequent discussions.

3 months ago
Forum
Introductions, Forum Rules & Updates
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